Fixed build for SDL 1.2.
Fixed build for SDL 1.2.
DataFighter/sdl-gpu,weimingtom/sdl-gpu,DataFighter/sdl-gpu,neozero497/sdl-gpu,neozero497/sdl-gpu,weimingtom/sdl-gpu,weimingtom/sdl-gpu,DataFighter/sdl-gpu,neozero497/sdl-gpu